The Major Tech MT930 Phase Rotation Meter is a compact and highly accurate device designed to detect phase sequence and phase presence in three-phase electrical systems. Featuring a large LCD display, this tester provides clear visual indicators for phase rotation direction and open phase detection, making it an essential tool for electricians and technicians working with industrial power systems.

Key Features:

  • Phase Rotation Indication: Displays clockwise (R) or anti-clockwise (L) rotation using clear LCD symbols and directional arrows.
  • Three-Phase Indication: Simultaneously detects phase presence and sequence, ensuring proper wiring in three-phase systems.
  • Wide Voltage Range: Operates on AC voltages from 40V to 850V, making it suitable for industrial and commercial applications.
  • Broad Frequency Detection: Works on frequencies ranging from 15Hz to 400Hz, accommodating various power system types.
  • Large LCD Display: Provides a clear, easy-to-read display for quick identification of phase sequence and open phase conditions.
  • Durable, Rugged Design: Encased in a double-moulded rubber housing (IP40-rated) for added durability and protection in demanding environments.
  • Small, Lightweight, and Portable: Compact design allows for easy transport and convenient use in the field.
  • Large Crocodile Clips: 20mm jaw opening ensures a secure connection to busbars, terminals, and conductors of various sizes.

Specifications:

  • Model Number: MT930
  • Voltage Range: 40V - 850V AC
  • Crocodile Clip Diameter: 20mm
  • Detection Mode: LCD indication
  • Frequency Range: 15Hz - 400Hz
  • Phase Rotation Indication: Clockwise (R) / Anti-clockwise (L)
  • Visual Indication: Large LCD screen with clear graphical indicators
  • Terminal Colors: Red, Yellow, Blue (corresponding to three-phase connections)
  • Housing Material: IP40-rated double-moulded rubber casing
  • Battery Type: 9V battery (included)
  • Dimensions: 135 x 75 x 31mm
  • Weight: 135.6g
  • Safety Ratings:
    • CAT IV 600V
    • CAT III 1000V (Compliant with IEC 61010-1 safety standards)

Applications:

  • Phase Rotation Testing: Ensures correct motor rotation to prevent damage to three-phase motors and industrial equipment.
  • Electrical Panel Wiring Verification: Identifies open phases and incorrect wiring in distribution boards and electrical panels.
  • Industrial Power Systems: Used in factories, power plants, and substations to check power system integrity.
  • HVAC and Pump Systems: Ensures proper installation of three-phase pumps and HVAC compressors.
  • Troubleshooting Power Systems: Helps electricians diagnose incorrect phase sequencing and missing phases quickly and accurately.

The Major Tech MT930 Phase Rotation Meter is an essential tool for electricians, maintenance personnel, and industrial technicians, offering quick, accurate, and reliable phase sequence testing to ensure the safe and efficient operation of three-phase electrical systems.

Q: Can the MT930 be used on both low and high voltage three-phase systems?
A: Yes, the MT930 operates within a 40V - 850V AC range, making it suitable for both low-voltage and high-voltage industrial applications.

Q: Does the MT930 require a battery?
A: Yes, it operates on a 9V battery (included), which powers the LCD display and phase rotation detection system.

Q: How does the phase rotation indication work?
A: The MT930 detects and displays clockwise (R) or anti-clockwise (L) rotation on the LCD screen, ensuring correct motor and system wiring.

Q: Is the MT930 suitable for industrial use?
A: Absolutely! With CAT IV 600V and CAT III 1000V safety ratings, IP40 protection, and a rugged rubberized casing, it is built for industrial and heavy-duty environments.

All products must be installed by a licensed electrican. DIY electrical work is illegal and very dangerous.

Change of Mind
All products purchased from MJS Electrical Products & Supplies are backed by a thirty (30) day Peace of Mind Return Policy. All products returned must be in perfect unused condition, with all components, complete with original packaging. We will not allow returns on damaged or incomplete products. Proof of purchase is required. Should the product not be in original condition, please contact us before returning it as this may save you some unnecessary costs.

Damaged / Faulty Goods
If you find that the goods were damaged in transit or were faulty in some manner, please contact us within 24 hours of receiving the goods. We will organise for the return of the goods and arrange a credit towards your next purchase or send a replacement product. Customer will incur the cost of return postage and be credited the purchase price only. We recommend that you return your unwanted items using registered post or trackable courier. We can not be held responsible if returned items are lost in transit.

Warranties
Product warranties are governed by the respective manufacturers and / or suppliers warranty terms and conditions (available on request). We will not be liable to you or any third party for any loss suffered due to product failure. We will process product warranty claims through the respective manufacturers and/or suppliers. All warranties are void if the product is not installed by a licensed electrician.

PRODUCT INFO
SKU MT930
Model # MT930
Barcode # 6008229008115
Brand Major Tech
SHIPPING INFO
Shipping Weight 0.5070kg
Shipping Width 0.070m
Shipping Height 0.220m
Shipping Length 0.140m